Speaker
Description
The Heavy Ion Research Facility in Lanzhou (HIRFL) and the High Intensity Heavy-ion Accelerator Facility (HIAF) are advanced heavy-ion accelerators, which play a critical role in pursuing a deeper understanding of nuclear physics. The beam monitoring system, known as the eyes of the accelerators, is an essential part of the accelerator facilities. Its function is to monitor the beam parameters to improve the beam quality. The performance of the beam monitoring system determines the ability of researchers to enhance the quality of the beam. The Topmetal silicon pixel ASIC IMPix-S2 is a hybrid pixel readout ASIC independently developed by us. It can directly collect the space charge around the chip without interaction with particles, and is the core device of the beam current monitoring system. The IMPix-S2 was designed using a 0.13 μm process with an ASIC size of 23 mm × 2.24 mm for beam monitoring. The ASIC mainly consists of a sensitive area consisting of circuits such as pixel arrays and a non-sensitive area for readout control. The sensitive area has 16 banks of pixels, each bank has 28 rows × 48 columns of 29 um × 29 um pixels. Each pixel measures the energy of the collected charge by topmetal, CSA, peak-holding circuit and source follower circuits. The readout control adopts a rolling shutter scanning method, where each bank scans all its pixels simultaneously and sequentially to output the energy information off-chip.
| Minioral | No |
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| IEEE Member | No |
| Are you a student? | No |
